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Showing 1 to 20 of 49 for “"Poly(ethylene oxide) (PEO)"”.

  1. A study of the effects of lithium perchlorate on poly(ethylene oxide), (Peo) melt dynamic behavior using Fabry-Perot interferometry

    Bogoslovov, Radoslav Boykov

    Poly(ethylene oxide)/lithium perchlorate (PEO/LiClO4) complexes are widely studied as a prototype solid polymer electrolyte in rechargeable lithium-polymer batteries. Characterizing the structure and dynamics of the system in its molten state is important for understanding the role of the polymer …

    unlv Repository record

  2. Block and Graft Copolymers Containing Carboxylate or Phosphonate Anions

    Hu, NanVirginia Tech2014

    … and characterization of graft and block copolymers containing carboxylate or phosphonate anions that are potential candidates for biomedical applications such as drug delivery and dental adhesives. Ammonium bisdiethylphosphonate (meth)acrylate and acrylamide phosphonate monomers were …

    vt Repository record

  3. Non-equilibrium polymeric complex fluids

    Willmer, DNottingham Trent University2011

    … experiments are performed on aqueous poly (ethylene oxide) (PEO) solutions to demonstrate the changes in viscosity and concentration over time, and the OT is then used in a rheological investigation into a commercially-relevant wormlike micelle (WLM) system, in conjunction with …

    nott-trent Repository record

  4. Application of PEO-PPO-PEO Triblock Copolymers in Synthesis of Silica and Organosilica Nanomaterials

    Zhang, ShuThe Graduate School and University Center of The City University of New York2024

    … on the application of Pluronic triblock copolymers, poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) (PEO-PPO-PEO), in the synthesis of mesoporous material, such as double-helical silica nanotube structures as well as bridged organosilica nanotubes by using swollen micelles …

    cuny-grad Repository record

  5. PEO-containing copolymers as polyurethane soft segments in the development of high performance materials

    James-Korley, LaShanda TeresaMassachusetts Institute of Technology2005

    Silk-inspired segmented polyurethanes containing flexible, hydrophilic segments with crystalline and liquid crystalline moieties were developed to mimic the hierarchical morphology of the continuous domain in and the superior mechanical properties of native spider silk. A series of polyurethane …

    mit Repository record

  6. Synthesis and Functionalization of Poly(ethylene oxide-b-ethyloxazoline) Diblock Copolymers with Phosphonate Ions

    Chen, Alfred Yuen-WeiVirginia Tech2013

    Poly(ethylene oxide) (PEO) and poly(2-ethyl-2-oxazoline) (PEOX) are biocompatible polymers that act as hydrophilic "stealth" drug carriers. As block copolymers, the PEOX group offers a wider variety of functionalization. The goal of this project was to synthesize a poly(ethylene …

    vt Repository record

  7. Functionalized Polyisobutylene: From Synthesis to Properties and Applications

    Karamdoust, SolmazThe University of Western Ontario2013

    Polyisobutylene (PIB) is a polymer well known for its desirable properties such as high chemical stability, impermeability to gases, and biocompatibility in certain applications. However in some applications it is limited by properties such as high hydrophobicity, lack of chemical functionalities, …

    uwo Repository record

  8. Development and thermal characterization of polydiacetylene (PDA) nanofiber composites for smart wound dressing applications

    Alam, A K M Mashud, author, Li, Yan Vivian, advisor, Park, Juyeon, committee member, Gentry-Weeks, Claudia, committee memberColorado State University. Libraries2016

    … stimuli. 10,12-Pentacosadiynoic acid (PCDA) and poly (ethylene oxide) (PEO) were used in this study to develop fiber composites via an electrospinning method at various mass ratios of PEO to PCDA, solution concentrations, and injection speeds. High mass ratios of PEO to PCDA, low polymer …

    colostate Repository record

  9. Polymer Electrolytes For lontophoretic Drug Delivery

    Sahota, Tarsem SinghDe Montfort University1999

    … into a 'patch-like’ delivery system. Polymer electrolytes offer possibilities for such systems. Polymer electrolytes are ionically conducting solid-like materials in which the ions are to coordinated to an immobile polymer solvent. The most widely studied host polymer for use in …

    de-montfort Repository record

  10. Soft Electronics and Sensors for Wearable Healthcare Applications

    Lo, Li-Wei2022

    … silver nanoparticles (AgNPs) inkjet-printed on a polydimethylsiloxane (PDMS) substrate that offers great pressure sensitivity for aterial pulse monitoring. In addition, we have investigated the conducting polymer poly(3,4-ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) and poly(ethylene …

    wustl Repository record

  11. Viscous Fingering Instability of Complex Fluids in a Radial Hele-Shaw Cell

    Lee, Young HoonGraduate Studies2024

    … differences of dilute low molecular weight poly(ethylene oxide) (PEO) solutions on viscous fingering instability are studied. Second, we investigate the instabilities associated with air invading foam in Hele-Shaw cell. Third, we examine the effects of water in viscous fingering …

    calgary Repository record

  12. Biphasic Nanoparticle Inks for Direct Write Assembly of Three-Dimensional Periodic Structures

    Rao, Ranjeet BalakrishnaUniversity of Illinois at Urbana-Champaign2015

    … of dispersant used to stabilize them, either poly(acrylic acid)(PAA) or a comb polymer comprised of a PAA backbone and poly(ethylene oxide)(PEO) teeth (PAA/PEO). The PAA/PEO-coated nanoparticles remain stable, and hence behave as repulsive species in suspension under high ionic strength …

    uiuc Repository record

  13. Improved filtration membranes through self-organizing amphiphilic comb copolymers

    Asatekin Alexiou, AyseMassachusetts Institute of Technology2009

    … the self-organization of amphiphilic comb copolymers is employed to develop improved membranes for aqueous filtration. The use of self-assembling copolymers leads to the desired properties (surface chemistry, selectivity) without additional processing steps. One aspect of this thesis focuses …

    mit Repository record

  14. Design of chemistry and morphology of polymer filtration membranes

    Akthakul, Ariya, 1973-Massachusetts Institute of Technology2003

    … the self-assembled structure of a graft copolymer is presented. This graft copolymer permits not only the design of morphology through its architecture, but also the design of chemistrythrough its chemical components. Here, a comb-type structure of a copolymer is applied; this structure …

    mit Repository record

  15. Determining soft segment structure-property effects in the enhancement of segmented polyurethane performance

    Waletzko, Ryan ScottMassachusetts Institute of Technology2009

    … Crystalline Elastomer (LCE)-inspired segmented polyurethane elastomers possessing widely different extents of ordering were created to mimic the hierarchical structure of the continuous matrix and superior mechanical performance of spider silk fibers. The silk's remarkable toughness originates …

    mit Repository record

  16. Surface Characterization of Poly (epsilon-caprolactone) at the Air/Water Interface

    Li, BingbingVirginia Tech2004

    Surface behavior of poly (epsilon-caprolactone) (PCL) have been studied at the air/water interface (A/W). PCL is a hydrophobic and crystalline polyester with a glass transition temperature around -60 degrees centigrade, a melting point around 55 degrees centigrade, excellent biocompatibility, and …

    vt Repository record

  17. Novel pillar formation in evaporating poly(ethylene oxide) droplets

    Baldwin, KANottingham Trent University2012

    … to dry, liquids containing high molecular weight polymer molecules leave a range of other deposit pat terns. In this thesis I observe that aqueous solutions of the polymer poly(ethylene oxide) (PEO) dries to form either the common coffee-ring stain, flat uniform “pancakes", or tall central …

    nott-trent Repository record

  18. Nanotexturing for Biomedical Implants

    Chase, Rebecca M.University of Akron2013

    … this capsule formation, using methods such as polyurethane coatings [11-15]. A new proposed texturing method is using electrospinning to produce nanofibers. The objective of this research is to coat water-soluble hydrophilic fibers (poly (ethylene oxide)) (PEO)) with a hydrophobic polymer film …

    ohiolink Repository record

  19. Spatial control of ligand presentation on biomaterial surfaces

    Brown, Gillian LouiseMassachusetts Institute of Technology1999

    … are controlled by modifying non-adhesive poly(ethylene oxide) (PEO) hydrogels with the minimal cell-adhesion peptide sequence GRGDY (RGD). The peptide is tethered to the hydrogel surfaces via star PEO molecules, producing surfaces on which the ligands are presented to cells in "clusters", …

    mit Repository record

  20. Structure and Dynamics of Polyhedral Oligomeric Silsesquioxane (POSS) and Poly(Ethylene Glycol) (PEG) Based Amphiphiles as Langmuir Monolayers at the Air/Water Interface

    Lee, WoojinVirginia Tech2008

    Throughout the study of polymeric Langmuir monolayers at the air/water (A/W) interface, the Wilhelmy plate and Langmuir-Blodgett (LB) techniques along with Brewster angle microscopy (BAM) have been identified as key methods for acquiring structural, thermodynamic, rheological and morphological …

    vt Repository record

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